"Mountains' music is defined by slow builds, and subtle transformations, textures, and melodic lines that evolve in a variety of ways to create grand soundscapes and acutely detailed compositions. For Centralia, the duo of Koen Holtkamp and Brendon Anderegg wrote and recorded in a way that mirrors the pace of their music. While the current trend in experimental music is towards hyper-prolificacy, Mountains have taken their time on Centralia, resulting in an album that is as precise as it is boundless. Holtkamp and Anderegg approached the album layer by layer, throughout much of the record, combining purely-acoustic recordings with purely-electronic sounds rather than using electronics to manipulate acoustic source material. Guitar, cello, organs, electric piano, and more are seamlessly combined with modular electronics, synthesizers, and other sound sources. The result is a fully engrossing listen, always shifting focus between acoustic instruments, processed instruments, and electronic sound."

"Air Museum blurs the lines between acoustic and electronic music even more without sacrificing melody or the delicacy of their sound. It is an album of firsts. It was the first album that the acoustic instruments were not processed via a computer. Instead, the processing of the instrumentation (acoustic and electric guitar, cello, accordion, piano, bass etc.) was done using a variety of pedals, modular synths, and other analog techniques. While acoustic instruments were used extensively, the album manifests itself sonically as their most 'electronic' record yet. Air Museum is also their first record that was made in a studio. Working in the studio expanded their possibilities, giving more room for experimentation. While much of the album was recorded in real time with minor editing, the band took the opportunity to utilize the studio as an instrument of sorts, investing a great amount of time in customizing their approach to post-production."

"Mountains is Brendon Anderegg and Koen Holtkamp, friends since their middle school days. The duo were brought together by mutual artistic and musical interests, and both ended up at the school of the Art Institute of Chicago. It was during this time that they began exchanging musical ideas and compositions which led to them founding the Apestaartje label in 1999. As their collaborations and individual projects blossomed, they decided to create Mountains as a vehicle for live performance. A love of sculpting sound in front of an audience is at the heart of Mountains. The group's third album, Choral, (their first self-titled release and second album Sewn were both on Apestaartje), is the culmination of their work to date and a balanced mix of the first two efforts. Mountains is often compared to artists such as Brian Eno and Fennesz citing their extended melodies and their unique broad guitar work. Mountains seamlessly blend pastoral electronic sounds with both field recordings and a plethora of acoustic instruments. The resulting soundscapes are broad in scope and rich in detail. The effect is incredibly sublime and hypnotic as the sounds slowly wrap themselves around each other and alter themselves in the mind of the listener. Choral is a uniquely soothing and addicting listening experience and an aural crazy quilt: warm and inviting with many details to discover and explore."